.header {
    position: relative;
    box-sizing: border-box;
    width: 100%;
    height: 70px;
    font-size: 22px;
    color: #fff;
    background-color: #242f42;

}
.collapse-btn{
    float: left;
    padding: 0 21px;
    cursor: pointer;
    line-height: 70px;
}
.header .logo{
    float: left;
    width:250px;
    line-height: 70px;
}
.header-right{
    float: right;
    padding-right: 50px;
}
.header-user-con{
    display: flex;
    height: 70px;
    align-items: center;
}
.btn-fullscreen{
    transform: rotate(45deg);
    margin-right: 5px;
    font-size: 24px;
}
.btn-bell, .btn-fullscreen{
    position: relative;
    width: 30px;
    height: 30px;
    text-align: center;
    border-radius: 15px;
    cursor: pointer;
}
.btn-bell-badge{
    position: absolute;
    right: 0;
    top: -2px;
    width: 8px;
    height: 8px;
    border-radius: 4px;
    background: #f56c6c;
    color: #fff;
}
.btn-bell .el-icon-bell{
    color: #fff;
}
.user-name{
    margin-left: 10px;
}
.user-avator{
    margin-left: 20px;
}
.user-avator img{
    display: block;
    width:40px;
    height:40px;
    border-radius: 50%;
}
.el-dropdown-link{
    color: #fff;
    cursor: pointer;
}
.el-dropdown-menu__item{
    text-align: center;
}